Yesterday, the Supreme Court heard oral arguments in its third case related to greenhouse gas emissions in seven years. How will the court's decision affect the future of air regulations coming out of U.S. EPA? During today's OnPoint, Richard Revesz, director of the Institute for Policy Integrity at the New York University School of Law, discusses the arguments and potential outcomes in the case. He also explains its significance in the context of the broader discussion on EPA's ability to regulate greenhouse gas emissions.